I've taken a list of English words, and examined each of them to see what they sound like (using the PHP metaphone function). This page lists the most common metaphone codes, along with their words. You can also search for a word of your own, and see which words sound similar - and which ones rhyme, and which ones alliterate.
trend trendy turned trined tornado torrent trained durned drownd droned truant darned tyrant drained drowned ternate trinity turnout triunity deraigned
rend trend yearend pernod sorned horrent horned frond gerent burned friend errand muraenid greened careened durned learned earned brent turned churned reearned gerund current rand kirned rind girned barned grind grand cairned corned rent rynd mourned yarned brand kerned rerent preened darned parent torrent trendy warned yearned
tarn tern terne torn tranny treen triene triennia trine trona trone tureen turn strewn